期刊
OPTICS AND LASER TECHNOLOGY
卷 143, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2021.107384
关键词
Laser beam; Optical Fiber; Beam quality; Controllable beam parameter
资金
- National Key Research and Development Program of China [2016YFB0401902]
- Special fund project for transformation of scientific and technological achievements in Jiangsu Province.-Research and industrialization of cluster energy optical fiber components for all-laser display [BA2019011]
A high-power hollow laser beam with excellent propagation properties can be achieved by using a tapered fiber with certain parameters. The proposed technique is simple, flexible, and easy to control and operate.
We present a method to produce a hollow laser beam with adjustable profile distribution using a tapered optical fiber. The dependence of the dark spot size (DSS), hollow beam width (HBW), and transverse field intensity distribution of the hollow beam on the incidence angle of the laser beam, cone angle of the tapered fiber, and working distance are analyzed theoretically and experimentally. The study shows that a high-power hollow laser beam with excellent propagation properties can be achieved by using a tapered fiber with certain parameters. The proposed technique is simple, flexible, and easy to control and operate.
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